what if

Erkan Zileli erkanzileli

what if

erkanzileli / refresh_certificates_on_runtime.go

Last active January 4, 2022 20:41

refresh certificates on runtime

	package main

	import (
	"crypto/tls"
	"github.com/fsnotify/fsnotify"
	"log"
	"net/http"
	"sync"
	)

erkanzileli / cue.go

Created September 8, 2021 18:16

sample cue usage

	package main

	import (
	"cuelang.org/go/cue"
	"cuelang.org/go/cue/cuecontext"
	cuejson "cuelang.org/go/encoding/json"
	"io/ioutil"
	)

	func main() {

erkanzileli / generate_kubeconfig_with_static_token

Created July 20, 2021 14:49

Generates a kubeconfig using the current context. Purpose is use static token instead of certificate files in kubeconfig

	#! /bin/sh

	kubectl -n kube-system create serviceaccount cluster-admin

	cat <<EOF \| kubectl apply -f -
	apiVersion: rbac.authorization.k8s.io/v1
	kind: ClusterRoleBinding
	metadata:
	name: cluster-admin
	roleRef:

erkanzileli / javascript_tag_function_tryout.js

Created May 8, 2021 16:54

i just tried tag functions

	const additionalFields = {};

	const logger = {
	info: loggerWithLevel("info"),
	error: loggerWithLevel("error"),
	debug: loggerWithLevel("debug"),
	};

	function loggerWithLevel(level) {
	return function log(strings, ...keys) {

erkanzileli / find_free_port.sh

Created February 20, 2021 20:46

	#!/bin/bash

	IP=$1
	PORT_START=$2
	PORT_END=$3

	for i in $(seq "$PORT_START" "$PORT_END"); do
	nc -z "$IP" "$i" 2> /dev/null
	exit_code=$?
	if [ $exit_code -eq 1 ]; then

erkanzileli / concurrent_processing_with_chunks.js

Created January 27, 2021 19:01

concurrent processing with chunks while holding a checkpoint as a file

	const R = require("ramda");

	// checkpoint, only processed data
	const processed = require("./updated.json");
	// processed and unprocessed data together, whole data
	const toBeProcessed = require("./to_be_updated.json");
	// data which will be processed on this execution
	const willBeProcessed = R.difference(toBeUpdated, updated);
	const chunks = R.splitEvery(10, willBeUpdated);

erkanzileli / couchbase_node.js

Created January 27, 2021 18:48

couchbase example with node.js

	const couchbase = require("couchbase");

	const cluster = new couchbase.Cluster("couchbase://hostname", {
	username: "username",
	password: "password",
	});
	const bucket = cluster.bucket("bucket-name");
	const collection = bucket.defaultCollection();

	async function main() {

erkanzileli / websocket.js

Created June 7, 2020 09:49

Sample WebSocket Server with Node.js

	const http = require('http')
	const WebSocketServer = require('websocket').server

	const PORT = process.env.PORT \|\| 8080

	const MessageType = {
	Join: 'Join',
	Left: 'Left',
	Message: 'Message'
	}

erkanzileli / azurevm.tf

Created January 30, 2020 08:01

Example Azure Virtual Machine infra

	provider "azurerm" {
	version = "=1.38.0"
	# subscription_id = "***"
	skip_provider_registration = true
	}

	variable "prefix" {
	default = "application"
	}

erkanzileli / index.js

Last active December 20, 2019 12:38

Run async tasks sequentally and with delay while without blocking event-loop

	async function getNumber(number) {
	return number
	}

	let tasks = [
	() => getNumber(1),
	() => getNumber(2),
	() => getNumber(3),
	() => getNumber(4)
	];